28803807 has 6 divisors (see below), whose sum is σ = 41605512. Its totient is φ = 19202532.

The previous prime is 28803781. The next prime is 28803811. The reversal of 28803807 is 70830882.

It is not a de Polignac number, because 28803807 - 2¹² = 28799711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28803877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1600203 + ... + 1600220.

It is an arithmetic number, because the mean of its divisors is an integer number (6934252).

Almost surely, 2^28803807 is an apocalyptic number.

28803807 is a deficient number, since it is larger than the sum of its proper divisors (12801705).

28803807 is a wasteful number, since it uses less digits than its factorization.

28803807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200429 (or 3200426 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28803807 is about 5366.9178305616. The cubic root of 28803807 is about 306.5372785661.

The spelling of 28803807 in words is "twenty-eight million, eight hundred three thousand, eight hundred seven".